1.BRIEF INTRODUCTION OF HOT-DIPPED GALVANIZED PRODUCTS
The main technology of Galvanized steel sheet is proceeding by the chemistry degrease and electroanalysis with the cold rolled steel coil and sheet, clean the oils on the surface of steel, sufficiently heated to the proper temperature for zinc coating,pass by level up, strain rectify, and then passivation or annoit etc. Hot dip zinc is in order to improve anti-erode and prolong the usage period of material, at the same time it can beautify the surface and add arty.
The hot dip galvanized steel sheet is widely used in such field as light industry,electrical home appliances,motorcar and construction. In the field of construction, it used in all kinds of industrial and civilian construction as light steel keer,air conditioner system,construction panel,etc. The hot dip galvanized steel coil is also the main material of PPGI.
2.FLOW CHART OF GALVANIZED STEEL
Decoiler ----- Shearer ----- Welder ----- Pre-treatment ----- Entry Looper ----- Annealing Furnace ----- Zinc Pot ---Aircooling Tower ----- Water Cooler ----- Leveller ----- Post Treatment ----- Exit Looper ----- Crimper
3.SPECIFICATION
| Base Material | Cold Rolled Steel Coil Hot Roll Steel Coil |
| Steel Type | Low carbon mild steel Extra lower carbon mild steel Low alloy steel High strength steel |
| Surface Structure | Regular spangle Skin-passed spangle Minimized spangle Zero spangle |
| Surface Treatment | Chromate-passivated(C) Oiled(O) Chromate-passivate+Oiling(C+O) Untreated(U) Anti-finger treatment Phosphate treated(P) |
| Quality Standard | EN10142,EN10147,ISO3575,ISO4998,GB2518,ASTM700 |
4.ZINC COAT WEIGHT(minimum value,double sides) g/m2
| CODE | THREE-POINT TEST VALUE | ONE-POINT TEST VALUE | ZINC THICKNESS |
| Z60 | 60 | 56 | 0.018 |
| Z80 | 80 | 78 | 0.02 |
| Z100 | 100 | 85 | 0.021 |
| Z120 | 120 | 102 | 0.026 |
| Z150 | 150 | 128 | 0.031 |
| Z180 | 180 | 153 | 0.034 |
| Z200 | 200 | 170 | 0.040 |
| Z220 | 220 | 187 | 0.043 |
| Z250 | 250 | 213 | 0.049 |
| Z270 | 275 | 234 | 0.054 |
5.WHY CHOOSE CUS-STEEL GROUP?
CUS-GROUP is an enterprise group which was established in 1998. It manufactures and distributes pre-painted steel coils, galvanized steel coil, cold roll-forming machinery, steel structure-based construction, metal roofing tiles, building and decoration materials.
The company has several subsidiary and joint venture compnies. Scope of the company has been extended to cover raw material supplies,productions, steel structure production and installation, technical and application researches.
The products have passed through the ISO9001 and 14001 quality assurance systems. Our company has been highly recognized as a contract-held, high creditability(AAA), and outstanding exportation company.
The products have been distributed both nationally and globally over more 30 countries with sound quality and competitive prices. So far the products have been widely accepted and applied in building and construction industry, decoration industry,and other related industries.
